Opportunity rarely knocks twice. 

(jī bù kě shī,shī bù zài lái )

A: I applied for a postgraduate course in a foreign university. I’ve been admitted, but I have some hesitation. 

(wǒ shēnqǐnɡ le ɡuówài yīsuǒ dàxué de yánjiūshēnɡ,wǒ bèi lùqǔ le,dànshì wǒ hái yǒudiǎn yóuyù.)

B: Opportunity rarely knocks twice. You need to grasp that. 

(jī bù kě shī,shī bù zài lái, nǐ děi bǎwò zhù. )

A: Thanks. 

(xièxiè. )